Speed boat



Jan. 2, 1934. w. J. SNADECKI 1,941,586

SPEED BOAT Filed May 27, 1932 7 JNVENTOR.

WILLIAM J. SNADE: CKI

' ATTORNEY.

Patented Jan. 2, 1934 UNITED STATES PATENT oFFicE 4 Claims.

This invention relates to new and useful improvements in theconstruction of boats and has particular relation to an improvedconstruction for boats of the class known as speed boats.

The principal object of the invention is to provide a speed boat thebottom of which is formed with lap strakes so strengthened or reinforcedas to be capable of withstanding terrific pounding.

Another object is to provide a construction as stated and which is lightand strong and such as to keep the boat bottom firm and keep the lapsfrom working or opening at the same time doing away with certainsecuring or fastening means usually employed.

Other objects and advantages will become apparent from a considerationof the following detailed description taken in connection with theaccompanying drawing wherein a satisfactory embodiment of the inventionis shown. However, it will be understood that the invention is notlimited to the details disclosed but includes all such variations andmodifications as fall within the spirit of the invention and the scopeof the appended claims.

In the drawing:

Fig. 1 is a bottom plan view of a boat constructed in accordance withthe present invention, parts being broken away to show the interiorconstruction; and

Fig. 2 is a transverse sectional view through a portion of the bottom ofthe boat, the view being on an enlarged scale.

Referring in detail to the drawing, the boat shell is generallyindicated at 5 and is constructed with the planks 6 or strakes 6arranged in overlapping relation or in the relation commonly called lapstraked or clinker-built. This particular construction may be used onlyon that portion of the shell below the water line although if desiredthe construction may be carried from the keel 7 to the gunwale of theboat. If desired, the outer contour of the shell may be that describedin my Patent Number 1,811,981

of June 30, 1931, although such contour does not form part of thepresent invention and the present invention is not limited to use inboats having the contour disclosed in that patent.

In Fig. 2 the garboard strakes are tapered or chamfered at their outeredges whereby the strakes at their inner edges engage such taperedportion at 8 to give relatively wide contacting surfaces at the lap.This is carried out as one strake over-laps the next whereby a solidconstruction is provided. Arranged within the boat shell and formingpart thereof are transversely extending ribs 9 curved to seat againstthe strakes whereby to strengthen them and assist in holding them intheir proper locations. Arranged on the ribs 9 and extendinglongitudinally of so the boat are battens 10, the said battens beingarranged directly over the laps 8 and 8. This construction may be usedonly on the bottom of the boat or that portion of the boat below thewater line and which receives the stress and c5 pounding while the boatis in use. However,

desired, the same construction may be employed from the keel to thegunwale. The battens and ribs are preferably of hard wood and aresecured together by screws as shown, the said screwsnot entering theplanking but having their heads located at the under sides of the ribs.

The construction above described provides a very strong constructionsince the bottom planks X5 or strakes are laid lengthwise the ribs 9inside are arranged crosswise of the strakes and over these ribs are thebattens also running lengthwise and serving to strengthen the laps tokeep them firm and against working such as would cause leaks and looseplanking. Of course, the number and size of battens employed depends onthe number of strakes and laps and the size of the boat. These battensneed not extend for the entire length of the boat but only for suchlength as good judgment may dictate to make a strong construction. Inthe high speed boats the bottom is subjected to pounding as the boat isdriven since as a rule its forward portion extends out of the water to acertain extent and the forward portion of the bottom of the boat isconstantly striking the water with considerable force. From theforegoing it will be seen that the invention relates to a round bottomlap strake boat.

Having thus described the invention, what is claimed is:

1. A boat shell comprising a body having a rounded bottom, said bottomformed with lap strakes, ribs within and extending transversely of saidbody and curved and engaging the inner surfaces of said strakes, battensextending lengthwise of said body and engaging the inner surfaces ofsaid ribs, means securing said battens to said ribs, and said battensarranged directly over the laps of said strakes.

2. A boat shell comprising a body having a rounded bottom, said bottomformed with lap strakes, battens within said body and extendinglengthwise thereof, and said battens arranged 4. A boat shell comprisinga body having a rounded bottom, said bottom formed with lap strakes, oneof said strakes being beveled at each of said laps whereby widecontacting surfaces are provided at the laps, ribs within and extendingtransversely of said body and curved and engaging the inner surfaces ofsaid strakes, battens extending lengthwise of said body and engaging theinner surfaces of said ribs, and said battens arranged directly over thelaps of said strakes.

WILLIAM J. SNADECKI.

